Explain about the partitioning, shuffle and sort phase in MapReduce?
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Mention what are the main configuration parameters that user need to specify to run mapreduce job?
How many numbers of reducers run in Map-Reduce Job?
With the help of two examples name the map and reduce function purpose
What is the best way to copy files between HDFS clusters?
How to set the number of mappers for a MapReduce job?
When should you use a reducer?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
List the network requirements for using Hadoop ?
What are the main configuration parameters in a MapReduce program?
Can we rename the output file?
How do you stop a running job gracefully?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
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